./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/psyco/psyco_accelerometer_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/psyco/psyco_accelerometer_1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9a4dd7b0485056d1e9470afeda0ab37136e1bca9c47a740d3a29feb318846c30 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 15:35:30,893 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 15:35:30,895 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 15:35:30,923 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 15:35:30,924 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 15:35:30,925 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 15:35:30,926 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 15:35:30,927 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 15:35:30,928 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 15:35:30,929 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 15:35:30,930 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 15:35:30,931 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 15:35:30,931 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 15:35:30,932 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 15:35:30,933 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 15:35:30,934 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 15:35:30,934 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 15:35:30,935 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 15:35:30,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 15:35:30,937 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 15:35:30,943 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 15:35:30,946 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 15:35:30,947 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 15:35:30,949 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 15:35:30,950 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 15:35:30,953 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 15:35:30,956 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 15:35:30,956 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 15:35:30,957 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 15:35:30,958 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 15:35:30,959 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 15:35:30,959 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 15:35:30,960 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 15:35:30,961 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 15:35:30,961 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 15:35:30,962 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 15:35:30,963 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 15:35:30,963 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 15:35:30,963 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 15:35:30,964 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 15:35:30,964 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 15:35:30,965 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 15:35:30,967 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-14 15:35:30,990 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 15:35:30,990 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 15:35:30,990 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 15:35:30,991 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 15:35:30,992 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 15:35:30,992 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 15:35:30,992 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 15:35:30,992 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-14 15:35:30,992 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-14 15:35:30,993 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-14 15:35:30,993 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-14 15:35:30,993 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-14 15:35:30,994 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-14 15:35:30,994 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 15:35:30,994 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 15:35:30,994 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 15:35:30,994 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 15:35:30,994 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 15:35:30,994 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 15:35:30,995 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-14 15:35:30,995 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-14 15:35:30,995 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-14 15:35:30,995 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 15:35:30,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 15:35:30,995 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-14 15:35:30,996 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 15:35:30,996 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-14 15:35:30,996 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 15:35:30,996 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 15:35:30,996 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 15:35:30,996 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 15:35:30,997 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-14 15:35:30,997 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a4dd7b0485056d1e9470afeda0ab37136e1bca9c47a740d3a29feb318846c30 [2022-07-14 15:35:31,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 15:35:31,206 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 15:35:31,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 15:35:31,209 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 15:35:31,209 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 15:35:31,210 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/psyco/psyco_accelerometer_1.c [2022-07-14 15:35:31,255 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5c1118a4/0d50068abcab4339b228f08c876e80d7/FLAG9d8004ed1 [2022-07-14 15:35:31,740 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 15:35:31,741 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_accelerometer_1.c [2022-07-14 15:35:31,767 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5c1118a4/0d50068abcab4339b228f08c876e80d7/FLAG9d8004ed1 [2022-07-14 15:35:31,990 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5c1118a4/0d50068abcab4339b228f08c876e80d7 [2022-07-14 15:35:31,992 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 15:35:31,993 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 15:35:31,995 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 15:35:31,995 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 15:35:31,998 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 15:35:31,999 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:35:31" (1/1) ... [2022-07-14 15:35:31,999 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@503b253d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:35:31, skipping insertion in model container [2022-07-14 15:35:31,999 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:35:31" (1/1) ... [2022-07-14 15:35:32,004 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 15:35:32,069 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 15:35:32,494 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_accelerometer_1.c[182833,182846] [2022-07-14 15:35:32,506 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 15:35:32,525 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 15:35:32,667 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_accelerometer_1.c[182833,182846] [2022-07-14 15:35:32,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 15:35:32,689 INFO L208 MainTranslator]: Completed translation [2022-07-14 15:35:32,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:35:32 WrapperNode [2022-07-14 15:35:32,690 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 15:35:32,691 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 15:35:32,691 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 15:35:32,691 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 15:35:32,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:35:32" (1/1) ... [2022-07-14 15:35:32,733 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:35:32" (1/1) ... [2022-07-14 15:35:32,857 INFO L137 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1255 [2022-07-14 15:35:32,858 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 15:35:32,859 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 15:35:32,859 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 15:35:32,859 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 15:35:32,865 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:35:32" (1/1) ... [2022-07-14 15:35:32,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:35:32" (1/1) ... [2022-07-14 15:35:32,892 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:35:32" (1/1) ... [2022-07-14 15:35:32,893 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:35:32" (1/1) ... [2022-07-14 15:35:32,932 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:35:32" (1/1) ... [2022-07-14 15:35:32,939 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:35:32" (1/1) ... [2022-07-14 15:35:32,949 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:35:32" (1/1) ... [2022-07-14 15:35:32,977 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 15:35:32,978 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 15:35:32,978 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 15:35:32,979 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 15:35:32,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:35:32" (1/1) ... [2022-07-14 15:35:32,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:35:32,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:35:33,009 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 15:35:33,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-14 15:35:33,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 15:35:33,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 15:35:33,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 15:35:33,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 15:35:33,120 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 15:35:33,121 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 15:35:34,120 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 15:35:34,129 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 15:35:34,129 INFO L299 CfgBuilder]: Removed 21 assume(true) statements. [2022-07-14 15:35:34,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:35:34 BoogieIcfgContainer [2022-07-14 15:35:34,131 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 15:35:34,133 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-14 15:35:34,133 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-14 15:35:34,135 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-14 15:35:34,135 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:35:34,136 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.07 03:35:31" (1/3) ... [2022-07-14 15:35:34,136 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41aa7b23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 03:35:34, skipping insertion in model container [2022-07-14 15:35:34,136 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:35:34,137 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:35:32" (2/3) ... [2022-07-14 15:35:34,137 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41aa7b23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 03:35:34, skipping insertion in model container [2022-07-14 15:35:34,137 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:35:34,137 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:35:34" (3/3) ... [2022-07-14 15:35:34,138 INFO L354 chiAutomizerObserver]: Analyzing ICFG psyco_accelerometer_1.c [2022-07-14 15:35:34,188 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-14 15:35:34,188 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-14 15:35:34,188 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-14 15:35:34,189 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-14 15:35:34,189 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-14 15:35:34,189 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-14 15:35:34,189 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-14 15:35:34,189 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-14 15:35:34,195 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 236 states, 235 states have (on average 1.974468085106383) internal successors, (464), 235 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 15:35:34,215 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 220 [2022-07-14 15:35:34,215 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:35:34,215 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:35:34,221 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-14 15:35:34,221 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:35:34,221 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-14 15:35:34,222 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 236 states, 235 states have (on average 1.974468085106383) internal successors, (464), 235 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 15:35:34,227 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 220 [2022-07-14 15:35:34,228 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:35:34,228 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:35:34,228 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-14 15:35:34,228 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:35:34,233 INFO L752 eck$LassoCheckResult]: Stem: 229#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(24, 2);call #Ultimate.allocInit(12, 3);~m_init~0 := 1;~m_disconnect~0 := 2;~m_getValueX~0 := 3;~m_getValueY~0 := 4;~m_Accelerometer~0 := 5;~m_update~0 := 6;~m_dataReceived~0 := 7;~m_connect_1~0 := 8;~m_connect_2~0 := 9; 171#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_#t~nondet26#1, main_#t~nondet27#1, main_#t~nondet28#1, main_#t~nondet29#1, main_#t~nondet30#1, main_#t~nondet31#1, main_#t~nondet32#1, main_#t~nondet33#1, main_#t~nondet34#1, main_#t~nondet35#1, main_#t~nondet36#1, main_#t~nondet37#1, main_#t~nondet38#1, main_#t~nondet39#1, main_#t~nondet40#1, main_#t~nondet41#1, main_#t~nondet42#1, main_#t~nondet43#1, main_#t~nondet44#1, main_#t~nondet45#1, main_#t~nondet46#1, main_#t~nondet47#1, main_#t~nondet48#1, main_#t~nondet49#1, main_#t~nondet50#1, main_#t~nondet51#1, main_#t~nondet52#1, main_#t~nondet53#1, main_#t~nondet54#1, main_#t~nondet55#1, main_#t~nondet56#1, main_#t~nondet57#1, main_#t~nondet58#1, main_#t~nondet59#1, main_#t~nondet60#1, main_#t~nondet61#1, main_#t~nondet62#1, main_#t~nondet63#1, main_#t~nondet64#1, main_#t~nondet65#1, main_#t~nondet66#1, main_#t~nondet67#1, main_#t~nondet68#1, main_#t~nondet69#1, main_#t~nondet70#1, main_#t~nondet71#1, main_#t~nondet72#1, main_#t~nondet73#1, main_#t~nondet74#1, main_#t~nondet75#1, main_#t~nondet76#1, main_#t~nondet77#1, main_#t~nondet78#1, main_#t~nondet79#1, main_#t~nondet80#1, main_#t~nondet81#1, main_#t~nondet82#1, main_#t~nondet83#1, main_~P1~0#1, main_~P2~0#1, main_~P3~0#1, main_~P4~0#1, main_~P5~0#1, main_~P6~0#1, main_~q~0#1, main_~method_id~0#1, main_~this_m_conn~0#1, main_~this_m_sensitivity~0#1, main_~this_m_samples~0#1, main_~this_m_delta~0#1, main_~this_m_accX~0#1, main_~this_m_sensorInfo~0#1, main_~this_m_conn_data_listener~0#1, main_~this_m_accY~0#1;main_~q~0#1 := 0;havoc main_~method_id~0#1;main_~this_m_conn~0#1 := 0;main_~this_m_sensitivity~0#1 := 100;main_~this_m_samples~0#1 := 200;main_~this_m_delta~0#1 := 1;main_~this_m_accX~0#1 := 0;main_~this_m_sensorInfo~0#1 := 0;main_~this_m_conn_data_listener~0#1 := 0;main_~this_m_accY~0#1 := 0; 172#L34-2true [2022-07-14 15:35:34,233 INFO L754 eck$LassoCheckResult]: Loop: 172#L34-2true goto; 80#L1248true assume !false;main_~P1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~P2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~P3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~P4~0#1 := (if 0 == main_#t~nondet7#1 then 0 else 1);havoc main_#t~nondet7#1;main_~P5~0#1 := (if 0 == main_#t~nondet8#1 then 0 else 1);havoc main_#t~nondet8#1;main_~P6~0#1 := (if 0 == main_#t~nondet9#1 then 0 else 1);havoc main_#t~nondet9#1; 13#L46true assume !(0 == main_~q~0#1); 33#L66true assume !(1 == main_~q~0#1); 214#L150true assume !(2 == main_~q~0#1); 46#L330true assume !(3 == main_~q~0#1); 77#L1070true assume !(4 == main_~q~0#1); 172#L34-2true [2022-07-14 15:35:34,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:35:34,237 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-14 15:35:34,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:35:34,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833894364] [2022-07-14 15:35:34,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:35:34,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:35:34,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:35:34,298 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:35:34,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:35:34,319 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:35:34,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:35:34,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1173980384, now seen corresponding path program 1 times [2022-07-14 15:35:34,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:35:34,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427407612] [2022-07-14 15:35:34,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:35:34,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:35:34,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:35:34,341 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:35:34,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:35:34,356 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:35:34,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:35:34,362 INFO L85 PathProgramCache]: Analyzing trace with hash 372316446, now seen corresponding path program 1 times [2022-07-14 15:35:34,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:35:34,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686237654] [2022-07-14 15:35:34,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:35:34,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:35:34,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:35:34,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 15:35:34,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 15:35:34,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686237654] [2022-07-14 15:35:34,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686237654] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 15:35:34,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 15:35:34,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 15:35:34,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189151288] [2022-07-14 15:35:34,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 15:35:34,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 15:35:34,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 15:35:34,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 15:35:34,567 INFO L87 Difference]: Start difference. First operand has 236 states, 235 states have (on average 1.974468085106383) internal successors, (464), 235 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 15:35:34,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 15:35:34,702 INFO L93 Difference]: Finished difference Result 230 states and 407 transitions. [2022-07-14 15:35:34,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 15:35:34,708 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 230 states and 407 transitions. [2022-07-14 15:35:34,715 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 204 [2022-07-14 15:35:34,721 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 230 states to 207 states and 322 transitions. [2022-07-14 15:35:34,722 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 207 [2022-07-14 15:35:34,725 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 207 [2022-07-14 15:35:34,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 207 states and 322 transitions. [2022-07-14 15:35:34,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 15:35:34,728 INFO L369 hiAutomatonCegarLoop]: Abstraction has 207 states and 322 transitions. [2022-07-14 15:35:34,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states and 322 transitions. [2022-07-14 15:35:34,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2022-07-14 15:35:34,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 207 states have (on average 1.5555555555555556) internal successors, (322), 206 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 15:35:34,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 322 transitions. [2022-07-14 15:35:34,764 INFO L392 hiAutomatonCegarLoop]: Abstraction has 207 states and 322 transitions. [2022-07-14 15:35:34,764 INFO L374 stractBuchiCegarLoop]: Abstraction has 207 states and 322 transitions. [2022-07-14 15:35:34,764 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-14 15:35:34,764 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 207 states and 322 transitions. [2022-07-14 15:35:34,766 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 204 [2022-07-14 15:35:34,766 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:35:34,766 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:35:34,766 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-14 15:35:34,766 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-14 15:35:34,766 INFO L752 eck$LassoCheckResult]: Stem: 681#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(24, 2);call #Ultimate.allocInit(12, 3);~m_init~0 := 1;~m_disconnect~0 := 2;~m_getValueX~0 := 3;~m_getValueY~0 := 4;~m_Accelerometer~0 := 5;~m_update~0 := 6;~m_dataReceived~0 := 7;~m_connect_1~0 := 8;~m_connect_2~0 := 9; 661#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_#t~nondet26#1, main_#t~nondet27#1, main_#t~nondet28#1, main_#t~nondet29#1, main_#t~nondet30#1, main_#t~nondet31#1, main_#t~nondet32#1, main_#t~nondet33#1, main_#t~nondet34#1, main_#t~nondet35#1, main_#t~nondet36#1, main_#t~nondet37#1, main_#t~nondet38#1, main_#t~nondet39#1, main_#t~nondet40#1, main_#t~nondet41#1, main_#t~nondet42#1, main_#t~nondet43#1, main_#t~nondet44#1, main_#t~nondet45#1, main_#t~nondet46#1, main_#t~nondet47#1, main_#t~nondet48#1, main_#t~nondet49#1, main_#t~nondet50#1, main_#t~nondet51#1, main_#t~nondet52#1, main_#t~nondet53#1, main_#t~nondet54#1, main_#t~nondet55#1, main_#t~nondet56#1, main_#t~nondet57#1, main_#t~nondet58#1, main_#t~nondet59#1, main_#t~nondet60#1, main_#t~nondet61#1, main_#t~nondet62#1, main_#t~nondet63#1, main_#t~nondet64#1, main_#t~nondet65#1, main_#t~nondet66#1, main_#t~nondet67#1, main_#t~nondet68#1, main_#t~nondet69#1, main_#t~nondet70#1, main_#t~nondet71#1, main_#t~nondet72#1, main_#t~nondet73#1, main_#t~nondet74#1, main_#t~nondet75#1, main_#t~nondet76#1, main_#t~nondet77#1, main_#t~nondet78#1, main_#t~nondet79#1, main_#t~nondet80#1, main_#t~nondet81#1, main_#t~nondet82#1, main_#t~nondet83#1, main_~P1~0#1, main_~P2~0#1, main_~P3~0#1, main_~P4~0#1, main_~P5~0#1, main_~P6~0#1, main_~q~0#1, main_~method_id~0#1, main_~this_m_conn~0#1, main_~this_m_sensitivity~0#1, main_~this_m_samples~0#1, main_~this_m_delta~0#1, main_~this_m_accX~0#1, main_~this_m_sensorInfo~0#1, main_~this_m_conn_data_listener~0#1, main_~this_m_accY~0#1;main_~q~0#1 := 0;havoc main_~method_id~0#1;main_~this_m_conn~0#1 := 0;main_~this_m_sensitivity~0#1 := 100;main_~this_m_samples~0#1 := 200;main_~this_m_delta~0#1 := 1;main_~this_m_accX~0#1 := 0;main_~this_m_sensorInfo~0#1 := 0;main_~this_m_conn_data_listener~0#1 := 0;main_~this_m_accY~0#1 := 0; 662#L34-2 goto; 524#L1248 [2022-07-14 15:35:34,767 INFO L754 eck$LassoCheckResult]: Loop: 524#L1248 assume !false;main_~P1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~P2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~P3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~P4~0#1 := (if 0 == main_#t~nondet7#1 then 0 else 1);havoc main_#t~nondet7#1;main_~P5~0#1 := (if 0 == main_#t~nondet8#1 then 0 else 1);havoc main_#t~nondet8#1;main_~P6~0#1 := (if 0 == main_#t~nondet9#1 then 0 else 1);havoc main_#t~nondet9#1; 496#L46 assume 0 == main_~q~0#1; 497#L47 assume !(0 != main_#t~nondet10#1);havoc main_#t~nondet10#1; 524#L1248 [2022-07-14 15:35:34,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:35:34,768 INFO L85 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2022-07-14 15:35:34,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:35:34,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254933744] [2022-07-14 15:35:34,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:35:34,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:35:34,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:35:34,793 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:35:34,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:35:34,806 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:35:34,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:35:34,809 INFO L85 PathProgramCache]: Analyzing trace with hash 40826, now seen corresponding path program 1 times [2022-07-14 15:35:34,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:35:34,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727680615] [2022-07-14 15:35:34,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:35:34,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:35:34,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:35:34,817 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:35:34,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:35:34,836 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:35:34,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:35:34,837 INFO L85 PathProgramCache]: Analyzing trace with hash 889540504, now seen corresponding path program 1 times [2022-07-14 15:35:34,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:35:34,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829157979] [2022-07-14 15:35:34,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:35:34,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:35:34,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:35:34,860 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:35:34,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:35:34,873 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:35:35,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.07 03:35:35 BoogieIcfgContainer [2022-07-14 15:35:35,150 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-14 15:35:35,151 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 15:35:35,151 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 15:35:35,151 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 15:35:35,151 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:35:34" (3/4) ... [2022-07-14 15:35:35,153 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-14 15:35:35,174 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-14 15:35:35,175 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 15:35:35,175 INFO L158 Benchmark]: Toolchain (without parser) took 3182.29ms. Allocated memory was 113.2MB in the beginning and 257.9MB in the end (delta: 144.7MB). Free memory was 74.2MB in the beginning and 170.1MB in the end (delta: -95.9MB). Peak memory consumption was 47.3MB. Max. memory is 16.1GB. [2022-07-14 15:35:35,176 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 113.2MB. Free memory is still 68.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 15:35:35,176 INFO L158 Benchmark]: CACSL2BoogieTranslator took 694.95ms. Allocated memory was 113.2MB in the beginning and 157.3MB in the end (delta: 44.0MB). Free memory was 74.2MB in the beginning and 84.8MB in the end (delta: -10.6MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. [2022-07-14 15:35:35,176 INFO L158 Benchmark]: Boogie Procedure Inliner took 167.51ms. Allocated memory is still 157.3MB. Free memory was 84.8MB in the beginning and 111.7MB in the end (delta: -26.9MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. [2022-07-14 15:35:35,177 INFO L158 Benchmark]: Boogie Preprocessor took 118.55ms. Allocated memory is still 157.3MB. Free memory was 111.7MB in the beginning and 99.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-14 15:35:35,177 INFO L158 Benchmark]: RCFGBuilder took 1153.17ms. Allocated memory was 157.3MB in the beginning and 257.9MB in the end (delta: 100.7MB). Free memory was 99.1MB in the beginning and 166.8MB in the end (delta: -67.7MB). Peak memory consumption was 77.9MB. Max. memory is 16.1GB. [2022-07-14 15:35:35,177 INFO L158 Benchmark]: BuchiAutomizer took 1017.87ms. Allocated memory is still 257.9MB. Free memory was 165.9MB in the beginning and 172.2MB in the end (delta: -6.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 15:35:35,178 INFO L158 Benchmark]: Witness Printer took 24.05ms. Allocated memory is still 257.9MB. Free memory was 172.2MB in the beginning and 170.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 15:35:35,179 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 113.2MB. Free memory is still 68.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 694.95ms. Allocated memory was 113.2MB in the beginning and 157.3MB in the end (delta: 44.0MB). Free memory was 74.2MB in the beginning and 84.8MB in the end (delta: -10.6MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 167.51ms. Allocated memory is still 157.3MB. Free memory was 84.8MB in the beginning and 111.7MB in the end (delta: -26.9MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 118.55ms. Allocated memory is still 157.3MB. Free memory was 111.7MB in the beginning and 99.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * RCFGBuilder took 1153.17ms. Allocated memory was 157.3MB in the beginning and 257.9MB in the end (delta: 100.7MB). Free memory was 99.1MB in the beginning and 166.8MB in the end (delta: -67.7MB). Peak memory consumption was 77.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 1017.87ms. Allocated memory is still 257.9MB. Free memory was 165.9MB in the beginning and 172.2MB in the end (delta: -6.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 24.05ms. Allocated memory is still 257.9MB. Free memory was 172.2MB in the beginning and 170.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 207 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 728 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 325 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 75 IncrementalHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 403 mSDtfsCounter, 75 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 34]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {m_getValueY=4, NULL=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25e4320e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68d947d8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4db4e3cf=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3275bab4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ae0bf63=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51aa54f3=0, P4=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77c4f303=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@359a9c68=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28bd76ca=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@66938175=13, P2=16, q=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37850c6b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@547beb64=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c4edab3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e0bcea8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76da42a0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ac359f7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@387ffb3f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d5a19bf=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@8a9269=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17fec17e=0, this_m_accX=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@634a5228=0, m_update=6, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@dad5c58=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@499b519=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@50be9c27=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@259ad694=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ead778c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b0df09e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@cc6985e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ba9c671=15, this_m_delta=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1feb569e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7845a78e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@665927cd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6bb11f83=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@327f2499=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6247d5e5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5232591f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ba76b30=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45106b40=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38b6fb03=0, P5=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6404c5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ef46ff9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3741f941=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48a15772=0, this_m_sensorInfo=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@15d4d7fc=0, m_connect_1=8, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@423b9df4=0, this_m_conn=0, method_id=0, P3=15, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61a0a598=0, m_Accelerometer=5, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ff59058=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b9cfa37=16, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43be854f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@788f2ab2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ac3c02b=0, this_m_sensitivity=100, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ba53eb2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5697cb2b=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@31267451=0, m_init=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5564a01f=0, P1=10, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f8120f7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@39ed8c1d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77cd18db=0, this_m_accY=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3286ead5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17e37cca=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@379dedef=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@62f91103=0, m_connect_2=9, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7334cb29=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a04b8f9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@498b6d2a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@343b16d=11, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@175feedc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@42fd4fc1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f72b1f6=14, this_m_samples=200, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a987c05=10, m_disconnect=2, this_m_conn_data_listener=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69e5f532=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@196a78b9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44e71eee=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76ac653a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7cb3ff81=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@596755a7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@136e83e4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2cced869=0, P6=1, m_getValueX=3, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b2168a2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d1f052c=0, m_dataReceived=7} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 34]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L7] int m_init = 1; [L8] int m_disconnect = 2; [L9] int m_getValueX = 3; [L10] int m_getValueY = 4; [L11] int m_Accelerometer = 5; [L12] int m_update = 6; [L13] int m_dataReceived = 7; [L14] int m_connect_1 = 8; [L15] int m_connect_2 = 9; [L20] int q = 0; [L21] int method_id; [L24] int this_m_conn = 0; [L25] int this_m_sensitivity = 100; [L26] int this_m_samples = 200; [L27] int this_m_delta = 1; [L28] int this_m_accX = 0; [L29] int this_m_sensorInfo = 0; [L30] int this_m_conn_data_listener = 0; [L31] int this_m_accY = 0; Loop: [L34] COND TRUE 1 [L37] int P1=__VERIFIER_nondet_int(); [L38] int P2=__VERIFIER_nondet_int(); [L39] int P3=__VERIFIER_nondet_int(); [L40] _Bool P4=__VERIFIER_nondet_int(); [L41] _Bool P5=__VERIFIER_nondet_int(); [L42] _Bool P6=__VERIFIER_nondet_int(); [L46] COND TRUE q == 0 [L47] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-14 15:35:35,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)